Lantern bracket



Nov. 6, 1923.

A. J. VALLEE ET AL LANTERN BRACKET Filed June l 1921 avwemtozs Valium Fatented Nov. 6, 1923.

T I If" ABMAND :r. VALLE'E, or ONEONTA, AND IRVING 1r. scanners), OF ALTAMONT, New

YORK.

LANTERN BRACKET.

Application filed June 1,

To all 107mm it may concern Be it known that we, ARMANI) J. VALLI JE and IRVING I-I. Sonarrono, citizens of the United States, and residents of Oneonta, county of Otsego, and State of New York, and Altamont, county of Albany, and State of New York, respectively, have invented a new and useful Improvement in Lantern Brackets, of which the following is a specification.

T his invention relates to a universal electric lamp support for an electric lamp and particularly to lanterns such as are-used for producing the light for night indications-of railway signal semaphores.

The principal object of this invention is to produce a lamp support of the nature specified which will enable a universal adjustment of the lamp within the lantern so that the light emitting portion thereof may be positioned at any point within its range exactly as desired.

Other objects and advantages will appear as the description of the particular physical embodiment selected to illustrate the invention progresses and the novel-features of the invention will be particularly pointed out in the appended claim. I

In describing in detail the particular physical embodiment selected to illustrate the invention reference is had to the accompanying drawings wherein has been illus trated a particular preferred physical-enibodiment of the invention and wherein like characters of reference designate corresponding parts throughout the several views and in which:

Figure l is a side elevation conventionally showing a railway signal semaphore lantern and the lamp housed therein; 'Fig.

2. is a sectional view on the line IIII of Fig. 1; Fig. 3, is a fragmentary view in elevationscmewhat enlarged of the lamp holding means included in Fig. 1 and is essentially a sectional view on the line IIIIII of Fig 2; Fig. s is a fragmentary view of be lower left-hand portion of Fig. 3 showing a modified form of fastening means; Fig. is a sectional view on the line VV of Fig. 4; Fig. 6, is a partial sectional view on the, line VI-VI of Fig. 5; Fig. 7, is a plan view of a modified form ofhorizontal supporting arm used in the invention.

Numeral 1 designates the lamp casing or lantern casing illustrative of the ordinary 1921.- Serial No. 474,177.

and well known signal semaphore lantern as used in railway signalling. Thls lantern as is well known and thoroughly understood by those skilled in mean of railway signalling, is placed in a position on a signal ,pole bearing a semaphore arm in sucha this. ob'ect aceuratel it is necessar. as is well understood by those skilled in optics, that the source of light-for the lens 2 must be accurately positioned relatively to a physical point determined by the construction of the lens 2. In order that the source of light may be thus accurately positioned applicants have devised the invention herein described.

the left of the door a vertical member 4 preferably a rod is supported in any suitable manner as by having its ends fitted into blocks 5 which blocks are secured to the casing 1 by suitable means as" screws- 6.

A. lamp supporting member 7 is provided and constructed so that it will wholly or partially, as ,prefer'red, embrace the rod 4c and be movable vertically up and down on. the rod 4, and provided with means for se curing it in a desired vertical adjustment upon the rode. r I .A lesirable construction for the end supporting member 7 so that it may be secured to vertical rod 4 is shown in Fig. 5 wherein the member 7 is shown assplit at the end engagingthe rod 4 so that it may be forced on to and of? the rodewithout removing rod 4 or loosening its connections to the easing member 1. 7 splitting member 7 as shown at 8 and then cutting away small portions of the member as shown at 9. In order to hold the member 7 in adjusted position on rod i, the bolt 10 is provided, as best shown in Fig. 5, whereby a tightening of nut 11 on bolt 10. causes the two ends of the member 7 to tightly clamp the rode. r v j If desired the member 7 may completely I 3 Inside of the lamp casingand a little to This is accomplished by embrace the rod 4 as shown in Figs. 3 and 4 and 7 being otherwise constructed as is shown in Fig. This method of con structing the end of supporting member 7, however, necessitates removing or loosening rod 4 if it is desired. to take supporting member 7 off from rod 4.

Supporting member 7, as best shown in Fig. 5, has a cut-away portion 12 extending throughout the greater portion of its length so that it is in efiect a bifurcated member, one of the bifurcations in Fig. 5 being designated 13 and the other 14, these being also well shown in Fig. 6.

Another form which the member 7 may take is shown in Fig. 7 in which the lefthand end is shown as being formed merely with a hole 15 through which the rod 4 may be passed, and the remainder of the member forming practically a bifurcated member having an open end 16.

Regardless of the form which the supporting member 7 may take, the vertical rod 4 may be supported in a variety of ways. One of these ways is shown in Fig. 3 in which blocks 5 supported by screws 6 through the casing may be used as hereinbefore described. Another method is shown in Figs. 4 and 5 in which blocks 17 formed with a half-round 20 therein are used. In this latter method the screws 21 pass entirely through the blocks 17 and into the rod 4, thus clamping rod and block firmly to the casing 1, whereas in the form shown in Fig. 3 the screw 6 does not enter the rod 4 but only enters the block-5 and may be made long enough to bear against the rod 4 or not as desired, but if made of such a length that it does not bear against rod 4, then the rod must be so tightly fitted into the block 5 that it has no vertical movement.

Regardless of the particular modification of supporting member 7 used a conduit 22 is passed between the bifurcations 13 and 14 projecting both above and below these members. Above the bifurcations an ordinary lamp socket 23 is threaded to the conduit 22 and a washer 24 is interposed between the socket 23 and the bifurcations 13 and 14. Below the bifurcations 13 and 14 a washer 25 is preferably positioned and below this is a threaded nut 28 threaded onto the conduit 22. This construction is all well shown in Fig. 6 and, as may be readily seen, permits the lamp socket 23 by a tightening of nut 26 to be securely fastened to member 7.

t will now be obvious that the constructions hereinbefore described enable the lamp socket 23 hearing the lamp 27 and so the filameat 28 of said lamp to be accurately positioned at any desired point within its range back of the lens 2. Fig. 2 shows the arm 7 moved to various radial positions about the vertical rod 4; Fig. 3 shows the horizontal support 7 at various positions vertically of the rod 4; Fig. 2 shows the lamp socket 23 positioned variously as regards the end of the horizontal supporting member 7, and it will be evident that by loosening nut 26 the socket 23 may be also thereby rotated and positioned radially of the vertical axis as desired, and in addition by reference to Fig.

3 it will be seen that the socket member 23 may be positioned below as well as above the horizontal member 7. The adjustments of the filaments 28 are thus seen to be such that the filament may be placed in any desired position within the range of the instrument back of the lens 2 so that the device provides a means whereby any oral-adjustment or mal-formation of lens 2 may be compensated for by positioning the filament 28 so as to obtain the desired direction of rays from the lens 2.

It should also be observed that all of the necessary to loosen nut 26 and then slip the .1

parts off the open end 16 of the member shown in Fig. 7 and then, after turning the same up-side-down, slip it back onto member 7 as shown in Fig. 7.v

It is also to be observed that all adjustments are made without detaching the current carrying wires 29 and 30.

Although we have particularly described the construction of one physical embodiment of the invention and explained the operation and principle thereof, nevertheless we desire to have it understood that the form selected is merely illustrative but does not exhaust the possible physical embodiments of the idea of means underlying the invention.

What we claim as new and desire to se are by Letters Patent of the United. States is In a lantern lamp bracket, in combination; a vertical support; a horizontal support formed with a bifurcation and adjustable vertically and radially upon said vertical support; positive means for maintaining a particular adjustment of the-horizontal support; a lamp support including a tubular member formed with a screw-thread on its end remote from the lamp passing between the bifurcation and a threaded member on the tubular member for tightening against the bifurcated ends so as to maintain the lamp in adjusted position rotatively on a vertical axis and longitudinally of the horizontal support.

ARMAND J. VALLEE. IRVING H. SCRAFF'QRD. 

